Describe a time when you were friendly to someone you didn't like.
You should say:
When and where it happened
Who he/she was
Why you didn't like this person
And explain why you were friendly to him/her on that occasion
There are a few times I've had to be friendly to people I don't really like. It's a part of everyday life, really. We have to be diplomatic and friendly with all sorts of different people. However, the time that really sticks in my mind was the time when I was assigned to working on a promotional stall for a student fair in the university hall. I was representing the university sports club and helping try to recruit new members. I had to be friendly with everyone who approached and asked me questions and try to give a good impression to the new students and their parents. Well, there was one boy and his mother who were incredibly snobby. It's hard to explain, but they were just really rude, superior in attitude, and condescending to me. I felt quite offended by the way they spoke to me. They never used any polite forms when speaking and asked me questions in a demanding way as if I was their slave or servant or something. I remembered what my teachers had said about customer service and being polite and helpful even to people who are rude and standoffish, so I controlled myself and kept my real feelings inside, and responded to this woman and her son with a calm polite attitude. I felt better, afterwards, actually. Sometimes it's better to maintain calm and remain polite and civil, even with very rude people. You know, take the moral high ground. That way you avoid any conflict and you tend to feel better about yourself afterwards, as well as giving a better impression of yourself to other people who might be around looking or listening to the interaction. All in all, I learned that controlling one's emotions and feelings in these kinds of interactions is really important.